Release notes pureMEMS 
and purePULSE

v3.15

2026-01-13​

• Fix:

  • Fixed bug that prevented linked check retry to trigger a resend of the command.

  • MEMS devices no longer lock up during sensor control when no sensor board is connected. (HW-1)

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v3.14

2025-05-13​

• Change:

  • Change rpm measurement start and end to make it more stable. (#5611).

  • Remove 1 min rpm history block. (#5611).

• Fix:

  • Prevent conflicts between machine check and rpm measurement. (#5611).

  • Prevent double rpm measurements after sensor wakes up from non rpm mode. (#5611).

  • Don't prevent measurements because of sensor fault on purePULSE. (#5611).

  • Handle linkedMode and machineCheckDuration settings getting invalid values after firmware update. (#5557).

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v3.13

2025-03-17

• New:

  • Added functionality to be able to set default settings after firmware update. (#5684).

• Change:

  • Updated default settings. (#5684).

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v3.12

2025-02-04

• Change:

  • Refactored RPM history data to use an array instead of std::deque.

  • On startup, in RPM mode, a measurement will be performed before the first status message is sent.

• Fix:

  • RPM alarm status is properly set based on the latest RPM measurement.

  • Rpm trend measurement is always added to history data.

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v3.11

2025-01-27 (Gateway v2.11.0+ required)

• New:

  • Added data to RTS message. Network type setting, last upload attempt flag and upload attempt number. (#5440).

  • Allow DR4 to be used for uploads. (#5288).

• Fix:

  • Prevent machine check duration setting to be set to 0. Prevent machine check to run 0 seconds. (#5567).

• Change:

  • Status polls will not pause and wait for sync hour when sensor is starting or when sync hour or poll interval settings are changed. (#5565).

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v3.10

2024-12-05 (Gateway v2.10.7+ required for public mode)

• New:

  • Fully public network mode added. (#4896).

  • Added setting for RPM machine check duration.

• Change:

  • Disable ADR when switching to hybrid network type. (#4896).

  • RPM deviation is level is compared to the latest saved RPM value instead of the first.

• Fix:

  • Disable ADC during sleep, lowering sleep current a lot.

  • Prevent machine check task from always triggering a poll.

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v3.10 
2024-12-12

• Improvement

  • Improved RPM measurement accuracy.

  • Further improved battery life.

  • Added more detailed error messages.

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v3.9 
2024-11-13

• Change

  • purePULSE can now take 30s long RPM measurements, improving low speed machinery support.

• Fix

  • Fixed a bug which could sometimes cause the sensor to reboot.

• Improvement

  • Optimized sleep current draw, significantly improving battery life. This increases battery life to over the previously stated 3 years.​​

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v3.8 
2024-10-16

• Change

  • pureMEMS now synchronizes RTC before taking every time signal measurement for more accurate time stamps.

  • purePULSE default settings changed.

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v3.7

2024-09-06

• Change

  • New default settings.

• Improvement

  • Improved wireless communication in hybrid LoRa networks.

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v3.6

2024-08-19

• Improvement

  • Improved wireless communication stability while in synchronized measurement mode.
     

v3.5

2024-05-07

• New

  • Synchronized measurements with purePULSE.

• Change

  • New default settings.

• Improvement

  • Improved accuracy of purePULSE RPM measurement.

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v3.4

2024-03-13

• New

  • Added support for purePULSE.

  • Synchronized measurements.

• Change

  • RMS and 0-P acceleration alarms are now only supported on the main axis (Z)

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v3.3

2024-01-22

• New

  • Support communication with public LoRa networks.

 

v3.2

2023-11-14

• Change

  • Trend measurement interval now supports minimum of 5 minutes instead of 30 minutes. Note, using a trend measurement interval of 5 minutes will reduce the battery life.

  • Trend value measurement is no longer performed automatically at sensor startup. This is to prevent trend value measurement while the user is still holding the sensor.

• Improvement

  • Improved wireless communication stability.

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v3.1

2023-10-29

• Improvement

  • Improved FOTA (Firmware Over The Air) functionality.

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v3.0

2023-06-29

• Improvement

  • Sensor now draws less power while in sleep mode, improving battery life.

  • Further improve sample rate accuracy.

 

v2.5

2023-03-15

• Change

  • Vibration alarm levels are now disabled as default until changed / enabled by user.

 

v2.4

2023-03-01

• Fix

  • Fixed issue where some sensors were stuck on max radio power.

  • Fixed issue where settings were not always applied correctly.

• Improvement

  • Improved sample rate accuracy.

v2.3

2023-01-12

• New

  • Added vibration alarm levels.

  • Added automatic triggering of time signals when vibrations exceed current alarm limits.

• Fix

  • Fixed issue that prevented some sensors to update to firmware v2.2.

  • Fixed issue causing some settings to not sync correctly.

  • Fixed issue where some time signals did not upload correctly.

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v2.2

2022-11-30

• New

  • Auto test of sensor components at startup.

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v2.1

2022-11-18

• New

  • Added support for FOTA (Firmware Over The Air). Sensors can now be updated remotely over the air.

  • RTC (Real Time Clock) now synchronizes to gateway.

• Improvement

  • Improved wireless communication stability.

 

v2.0

• Internal version only.

v1.1

2022-09-06

• New

  • Added setting for acceleration HP-filters.

• Change

  • New default settings.

• Fix

  • Cloud sync now triggers correctly.

v1.0

2022-08-19

• New

  • First initial firmware version.

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